I've seen that you talked about the IberGT, that competition doesn't exist anymore.
There are a new "GT competition" called Michelin Endurance Series, with regulations close to the MSA British Endurance series. It's a competition with just 4 meetings (3 hours each one).
This was the result of the first one:
http://www.vlineorg.com/newsdata/868...arra_13_04.pdf
Spanish motor competitions are dead, mostly because the bad work of the spanish motosport federations.